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Uncut PCB for a couple of projects: IR camera and LED array. Semitransparency of FR4 material can be useful.
General Dynamics F-16A Fighting Falcon of the Belgian Air Component 10 Tactical Wing from Kleine Brogel Airbase participating in Red Flag 14-2 exercises at Nellis AFB.
This photograph shows a tree in the terrestrial ecosystem of my backyard. This tree is a producer. This tree is related to the other biotic factor I captured, the bird, because it provides food, like fruits and seeds, and shelter for the bird. The bird helps the tree by eating harmful insects living on it as well as helping the pollination process. Terrestrial ecosystems, just like aquatic ecosystems, also have abiotic components. However, aquatic ecosystems are affected greatly by runoffs that pollute the water with fertilizers, chemicals, and waste water treatment discharge. This increases the levels of nutrients in the water and could lead to an algal bloom, resulting in the death of plants and animals living in the aquatic ecosystems.
NON-NUCLEAR COMPONENT STORES BUILDING 59 (demolished) –
The function of the non-nuclear component stores was to hold the high explosive part of the bomb and its outer casing. The casing could probably be split into two units, the tail and forward part containing the high explosive and electronics. The bombs, minus their fissile components, were housed in three almost identical stores buildings 59-61, known as Storage Building Type 'D-D'. These are arranged in an arrowhead pattern, and are accessed from the internal loop road, and are all surrounded by 14ft 6in high earth traverses, revetted by a reinforced concrete retaining wall against the roadway.
The western store, building 59 was gutted by a fire during the 1980's and has subsequently been demolished. Its floor plan remains visible on the remaining concrete floor slab. The two remaining stores, buildings 60 and 61 are rectangular in plan, and are constructed from reinforced concrete columns and beams. Internally there are two rows of columns, 13in², which support the roof beams, 2ft by 9in, which carry the 9in thick reinforced concrete roof slab which is covered with bituminous felt. The rainwater gutters and down pipes are cast asbestos.
The wall sections are filled with 18in by 9in by 9in precast concrete blocks, internally the main storage area measures 190ft 2½in by 60ft. It is divided longitudinally into eleven 17ft by 3ft bays and cross ways into three bays the outer bays measure 17ft 6in and the central bay is 25ft wide. The maximum clear internal height was 12ft from the floor to the underside of the roof beams. The floor is surfaced with a hard gritless asphalt with the patent name 'Ironite'. The walls are painted pale green colour and the ceiling cream. in store building 61 the bay letters 0, N, M, and L are visible on the rear columns on the eastern side, suggesting the store was divided into 22 bays along the outer walls.
Abutting on to the front of the stores, and flanking the entrances, are plant and switch rooms, which originally contained heating and air conditioning plant to maintain a stable environment within the stores. A raised air extract duct is placed asymmetrically on the roofs of the stores. Entry into the stores is through a 10ft wide door opening with 12ft high doors. In the rear wall of the stores is a single door width, outward opening emergency exit. The first nuclear weapon the store was designed to hold was relatively large, a ''Blue Danube'' bomb measured 24ft in length and weighed 10,000lbs.
The problems of handling such large objects are reflected in the provision of substantial lifting gantries at the entrance to each store. Two variants are found, the simplest, exemplified by the middle store building 60 comprises a straight gantry. Over the roadway the gantry is supported by four 24in by 18in reinforced concrete columns, which support two 51in by 24in reinforced concrete beams. The upper beams of the gantry taper towards the entrance to the store where they are suppurted by two reinforced concrete columns. On the underside of the gantry is attached a 20in by 6½in rolled steel joist runway beam which runs to the entrance to the building. This was originally fitted with a 10 ton hoist. The gantry is covered by asbestos sheeting to provide a dry working area.
On the eastern and western stores the gantries were set at 30° to the front of the stores. In this variant an extra set of columns was placed at the 30° dogleg. Internally there is no evidence for a runway beam, so it presumed the bombs were lifted off a road transporter and loaded onto a bomb trolley for storage. It is not known how many bombs were kept in each store, or if the tail units were separated from the front part of the bomb for storage. Subsequent to the site being relinquished by the RAF a central corridor has been created in the stores by the insertion of breeze block walls. Doors in these walls give access to workshops along either side of the buildings. External windows have also been inserted in some of the bays.
Information sourced from English Heritage.
I hooked everything up here to do a last check to make sure everything works. It appears to. I'll have no idea how it actually sounds though until it's all in the box.
When the amp is put on the back of the box, I will connect the speaker wires to the outputs on the inside of the amp and ignore the screw terminals.
See the whole project here!
Virginia National Guard Soldiers assigned to the Fairfax-based Data Processing Unit join representatives from 14 states in displaying cyber capabilities at the U.S. House of Representatives National Guard and Reserve Components Caucus State Cyber Day Oct. 22, 2015, at the Rayburn House Office Building in Washington, DC. Rep. Steven Palazzo, R-Miss., and Rep. Tim Walz, D-Minn., co-chairs of the caucus, created this opportunity for Washington officials to see the cybersecurity capabilities, coordination and partnership building in the Guard and Reserve. In addition to Army and Air Guard cyber experts and senior leaders from fourteen states, representatives from the National Governors Association and the National Guard Bureau also took part in the event. Originally formed in January 1975 to provide data processing support to National Guard Bureau, the mission of the DPU has evolved over the years and is now poised to conduct full spectrum cyber operations. The unit has more than 160 Soldiers whose missions include conducting web risk and vulnerability assessment in support of U. S. Army Cyber Command and other federal agencies. They are also prepared to support the Commonwealth of Virginia with computer network defense and recovery operations. (Photo by Cotton Puryear, Virginia National Guard Public Affairs)
Vacuum tubes, resistors, diodes, a Tube Screamer guitar pedal, transistors, terminal strips and more!
September 19, 2014
MedAire will present interesting new items at following week’s Monaco Yacht Demonstrate, exhibiting at QJ12 as element of the New Zealand Street. The business will have their specialist team on-site to assist superyacht crew decide on the on board healthcare equipment that best...
www.yachtblog1.com/yacht-reviews/medair-to-be-component-o...
The electronic component suppliers in India have a huge task to do. The suppliers need to ensure that there is availability of products in the hands of the end users. The task of supplying goods is not an easy task in India and these suppliers do it with an ease.
Presented by the Josephine B. Scheffenacker Education Trust.
One of the most exciting components of A+ Partners in Education, Battle of the Books gets fifth grade students excited about reading. A lively academic competition, Battle of the Books improves reading comprehension, builds vocabulary, and teaches teamwork and good sportsmanship. The 2015 competition runs concurrently at Howard, Mt. Hebron, Oakland Mills, River Hill and Wilde Lake high schools.
Teams of five students and one adult coach each read the same 16 pre-assigned books over four months. Selected by HCLS instructors and HCPSS media specialists, titles include a wide range of reading levels and subjects. Thanks to generous sponsors, all teams receive a set of books. In addition to reading the books, teams choose a team name then dress accordingly.
During the "battle" (a 50-question exam), a moderator asks questions that relate to one of the following: a direct quote from one of the book characters; a statement about something that happens in the book; a passage taken directly from the book; details about an illustration or picture. Winning teams receive prizes.
Composants électroniques (focus stacking).
Image composée de 57 photos prises avec la bonnette Raynox DCR-250 et assemblées avec Zerene Stacker.
In a couple of weeks I've signed up on a course where I will hopefully learn how to use an overlocker. This will be at the same place where I went earlier in the year to learn how to thread and use a basic sewing machine.
It's a week or so before my daughter's birthday and the item of clothing we're making is a child's dress so I've let my daughter pick her fabric, thread, and buttons this weekend in the hope that I don't make an absolute arse of the dress and it will be something she can treasure.
Fingers crossed, no pressure.
Esse é um computador de um cliente que estava se reclamando de travamentos e tinha vezes que nem se quer ligava. Agora adivinhem por que ?
I've completely reworked the hadware board. The basics remain the FPGA module Terasic, the DE0-Nano. This board contains a lot of I / O lines and is super fast. Everything is on a single-sided PCB. The output transistor drivers ( 20 pieces 500 mA/ 45V outputs ) are in SMD to save board space. The DE0-nano FPGA board is as a Peggy-back board mounted on ther driver PCB. Via the USB connector, the FPGA program can be re-written.
What does this interface:
* 20 open collector outputs via JP10 and JP11.
- Camera meter
- Camera shutter
- X1 flash1 signaal ( manual or TTL mode flash1)
- Q1 flash1 signaal ( TTL mode flash1 ) or X3 flash3 manual mode.
- X2 flash2 signaal ( manual or TTL mode flash2)
- Q2 flash2 signaal ( TTL mode flash2 ) or X4 flash4 manual mode.
- DIR steppen motor board.
- Step steppen motor board.
- Enable steppen motor board.
- 1 Spare output.
- 4 outputs used to drive the color background module. Via JP12
- 6 outputs used to drive the Cree foreground module. Via JP9
Enc1 connector:
2 inputs from a rotary encode frontplate. Used as general digital input value.
Enc2 connector:
2 inputs from a rotary encode frontplate. Used to move the step motor of the lineaire stage module in manual mode.
Range switch input
4 input switches to change the analog sensitivity range of the color pot meters.
Drive of the H-Bridge color shutter module:
- 6 direct FPGA outputs via JP13 and JP17.
Matrix 5X8 keyboard 40 pushbuttons. via JP14 and JP18.
LCD1 display 4X20 chars via JP16.
LCD2 display 4X20 chars via JP15.
4 I/O connectors via JP2 still no assigned function.
Connection via the general GPIO3 connector from the top of the FPGA DE-Nano board.
2x13 pins connected to JP5 and JP6.
8 analog inputs 12 bit resolution via JP8.
- 4 inputs are used for the color setting.
- 1 input used for the stepper speed
- 3 free analog inputs, no function now.
Logic analyser signals:
- 8 levels out the FPGA module via JP3.
Encoder and micro switches from the lineaire stage as feedback position via JP4.
- EncA.
- EncB.
- Enc home.
- min end switch.
- max end switch.
3 I/O connectors via JP1 still no assigned function.
Power 5V and 3.3V connectors.
Last update 2 feb 2015
Our digitally manufactured components arrive on site. Each one has a number defining its location and type.
Peter Thorne talking Research component and innovation at AfricaRising project planning meeting 13-14 February 2013 (photo credit: ILRI/Apollo Habtamu).
Components from the Finnish edition of The Mysteries of Old Peking. An overdose of the Chop Suey font, that's for sure.
Three "mature" cars, around six weeks of regular work - it seems that I've been rectifying inherited neglect, preparing for tests, and replacing service items on and off since before Christmas.
So, it's my fault for running old vehicles. Old but fixable, I'd contest. Now, this approach to cheap motoring is fine, providing the home mechanic stays ahead of the work. If time is eroded by work, family, and other things, a period of oily fingers and chasing of MOT-test deadlines can wear even the most determined down. Add that to foul weather, and it becomes a veritable "campaign".
So, here are the remains, the slightly odd duck being a gesture to my parents old house. I found her in the garden. She appears here as a reminder that we need vehicles on standby just in case I have to rush south to attend to witness the last breaths of elderly parents.
So, it's over. Here is some of the evidence. The rest is driving around, tested, well-maintained. I'm glad it's over for now. Character building, but best viewed in hindsight.
Product photography experiment with an Aston Martin racing Vantage front upright. Taken using long exposure (20-30 seconds), ND64 filter and a light wand. Minimal editing in Lightroom.
electronic components from GME store: resistors, capacitors, diodes, transistors, leds, connectors, voltage regulators